Ioan,
I used the DEK Proflow head for seven years in a high-volume production
environment. It worked well (we were printing a board every 20 seconds).
However, my product was not that difficult to print (25 mil pitch) and
anytime I had more difficult boards (i.e. <25 mil fine-pitch) I would revert
to squeegees as I felt (no significant data to prove) they gave a more
consistent print. I think that DEK has done a decent job with the proflow
head technology and that it works for most applications. I also know they
have made improvements from the head that I was using.

While I think that the logistics would be easier the cost might not change
that much. I believe proflow cartridges are more expensive but should also
produce less waste. You will probably have to do a more thorough analysis to
determine if changing would be a benefit. DEK should be able to assist in
this evaluation.

Joel Mearig
Delta Tau Data Systems, Inc.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Tempea, Ioan
Sent: Monday, May 01, 2006 12:02 PM
To: [log in to unmask]
Subject: [TN] Pump printing

Hi Technetters,

I wonder what your experiences are with this kind of technology, i.e.
Proflow head from DEK or Rheopump from MPM.

I have a high mix low volume application (250 different assemblies with lot
quantities between 5 and 20). The assemblies are ranging from low complexity
(a few SMT passives and an IC) up to fairly complex (10"x12", high density,
0402, 10 mini BGAs).

Will a pump be good for me from the logistic/financial point of view? What
about the viability of these systems, are they OK, no tendency to break whan
you least need it?

Thanks,
Ioan





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